AI Article Synopsis
- The study aimed to establish standard measurements for the axial length and corneal curvature of children's eyes from birth to 10 years old.
- Conducted on a sample of 100 children without eye diseases, the research measured ocular dimensions using ultrasound biometry and keratometry while they were under anesthesia for unrelated procedures.
- Results showed a significant increase in axial length with age, while average corneal curvature tended to decrease slightly, providing reference charts that could help identify ocular conditions in children.
Article Abstract
Background/aims: To establish normative curves for axial length and corneal curvature in the first decade of life.
Methods: This is a cross-sectional study from a single institution in the United States. Children from 0- to 10-years of age with no underlying ocular pathology were prospectively enrolled to obtain ultrasound biometry and hand-held keratometry while under anaesthesia for an unrelated procedure. Older cooperative children had optical biometry obtained in-office. Logarithmic quantile regression models were used to determine the change in axial length and average keratometry as a function of age.
Results: Single-eye measurements from 100 children were included. 75% of children were White and 49% female. Median axial length ranged from 20.6 mm (IQR, 20.2 to 21.1 mm) at age one year to 23.1 mm (IQR, 22.5 to 23.8 mm) at age ten years. Median average keratometry ranged from 44.1 D (IQR, 42.6 to 45.4 D) at age one year to 43.5 (IQR, 42.2 to 44.0 D) at age ten years. As age increased, there was a significant increase in axial length (0.74 mm per doubling of age; 95% CI, 0.62 to 0.82 mm), and a non-significant trend towards lower average keratometry (-0.21 D per doubling of age; 95% CI, -0.62 to 0.08 D).
Conclusions: We provide a set of normative charts for axial length and corneal curvature which may facilitate the identification of eyes outside the normal range and assist in the management of ocular conditions such as glaucoma or cataract.
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| http://dx.doi.org/10.1177/11206721231167643 | DOI Listing |
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